Average annual temperature is 26.6 °C
Absolute maximum temperature: 38.0 °C
Absolute minimum temperature: 16.1 °C
Number of sunny days: 183 days
Number of rainy days: 182 days
Look at detailed online map of Siona
* Weather data for Siona Benin is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 36.0 | 37.4 | 38.0 | 37.7 | 37.0 | 34.1 | 32.9 | 31.7 | 35.4 | 36.5 | 36.5 | 36.6 |
| Average daytime temperature (°C) | 33.6 | 35.1 | 36.0 | 35.7 | 34.2 | 31.3 | 30.9 | 29.7 | 31.1 | 33.5 | 35.4 | 35.0 |
| Average temperature (°C) | 25.1 | 26.7 | 28.5 | 28.8 | 27.9 | 25.9 | 25.5 | 24.7 | 25.4 | 26.7 | 27.9 | 26.4 |
| Average night temperature (°C) | 18.7 | 20.5 | 23.2 | 23.9 | 23.6 | 22.4 | 22.2 | 21.7 | 21.9 | 22.3 | 21.9 | 19.4 |
| Absolute minimum temperature (°C) | 16.1 | 17.9 | 20.6 | 22.0 | 22.4 | 21.6 | 21.3 | 21.0 | 20.7 | 21.0 | 19.5 | 17.5 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 11.0 | 11.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 |
| Daylight mean duration (h) | 11.6 | 11.8 | 12.1 | 12.3 | 12.6 | 12.7 | 12.6 | 12.4 | 12.2 | 11.9 | 11.7 | 11.6 |
| Daylight minimum duration (h) | 11.0 | 11.0 | 11.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 |
| Sunshine mean duration (h) | 10.1 | 9.9 | 9.2 | 9.1 | 9.7 | 8.7 | 8.3 | 6.7 | 8.0 | 9.1 | 10.5 | 10.5 |
| Precipitation (mm) | 0 | 0 | 18 | 18 | 61 | 106 | 148 | 256 | 93 | 74 | 5 | 0 |
| Sunny days | 31 | 28 | 20 | 18 | 11 | 1 | 2 | 0 | 1 | 15 | 25 | 31 |
| Rainy days | 0 | 0 | 11 | 12 | 20 | 29 | 29 | 31 | 29 | 16 | 5 | 0 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Siona is at